Two small Canon accessories landed together on November 4, and the one I'd actually order is the timer remote.
The Timer Remote Controller TC-N3 and TC-E3 have a new "Specified-time shooting" function that lets you preset a start time and end time, so you can set up a star trail or a sunrise timelapse and walk away. Canon also raised the maximum shot count from 99 to 9999, added a tripod socket on the back, and kept the orange backlight for working in the dark. The TC-N3 is for N3-type remote terminals, the TC-E3 for E3-type, and both will ship from December 2026.
The other accessory is the DM-E10D, a 59g monaural digital microphone for the Multi-Function Shoe with a supercardioid pattern, a shock mount and a furry windscreen. Canon's Hong Kong arm lists it at HK$1,480, and it also arrives in December.